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UltraDefrag is a free, open-source file defragmentation utility for Windows. It can defragment any system file, including the Registry. It's fast and powerful by design, in part because it skips fancy data optimization strategies in favor of speed and reliability. UltraDefrag Portable is a fully portable, fully functional release based on UltraDefrag's source code. It has three operating modes: a GUI mode, with a standard user interface; a console mode; and a native mode for advanced users. We tried the GUI mode, in part because we like to see a cluster map when we defrag our drives.
You'll need Administrator privileges in Windows to run UltraDefrag Portable. The Web-based UltraDefrag Handbook offers guidelines for installing and using the tool, FAQs, best practices, hardware recommendations, tips and tricks, and more. Some of the manual's recommendations may be a bit advanced for the average user, such as disabling the Paging File. The documentation also warns against defragmenting SSDs and flash drives, though the program will do so if you tell it to, so heads up. UltraDefrag's up-to-date user interface has an old-school feel to it, partly because of the font but also because it has the classic defrag utility layout, with disks displayed in a list view above the color-coded cluster map. UltraDefrag offers defragmentation as well as Quick and Full Optimization (they only work on NTFS disks, not on FAT disks) that offer similar operations, but quicker and lighter. UltraDefrag Portable certainly is fast. It quickly analyzed and defragmented our system's HDD, displaying free space, used space, and other data under draggable column headings. The program also generates HTML-based Reports. The Unicode configuration file needs to give way to proper controls.
We like UltraDefrag Portable's speed and flexibility. It's largely the same as the installed version of UltraDefrag, except that it runs from any directory without having to be installed, making it a good option for mobile users. However, the portable version lacks the installed version's boot time defragmenter, a major feature, so we recommend using the installed version where you can, and taking the portable version on the road with you.
Publisher's Description
From UltraDefrag:
UltraDefrag Portable is a powerful open source defragmentation tool. Its engine is very fast, because it is created as kernel-mode driver. They are three interfaces to them: graphical, console and native. First is very useful, because it use cluster map visualization. Console is good for task scheduler, and native tool - for advanced users and programmers.
What's new in this version: Version 6.0.2 has updated Albanian, Danish, Filipino (Tagalog), Indonesian (Bahasa Indonesia), Javanese, Polish, and Portuguese (BR) translations.
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All versions:
4.6 starsout of 5 votes
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Current version:
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Results 1-5 of 5
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"Fast and efficient"
Version: UltraDefrag Portable (32 bit) 5.1
Pros
Effective and quick de-fragmentation and compaction
Cons
GUI is old fashioned
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"The BEST Open-Source Defragger"
Version: UltraDefrag Portable (32 bit) 5.0.6
Pros
The BEST Open-Source Defragger, not much else to say.
Cons
None that I know of at the moment
Summary
qbnito2: It's FREEWARE, not a TRIAL! You possible misread something OR downloaded something else.
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"Deceiving advertising"
Version: UltraDefrag Portable (32 bit) 5.0.6
Pros
No pros i hate being deceived
Cons
This is advertised as freeware but it's really a trial version.
Hate deceit. -
"Very fast defraggler program"
Version: UltraDefrag Portable (32 bit) 4.4
Pros
It is portable free and fast.
Cons
No cons at all.
Summary
Program to keep in evidence
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"It's very fast."
Version: UltraDefrag Portable (32 bit) 4.4
Pros
I've used programs that take up to an hour to run on a 64GB drive. Just the basic defrag option takes only minutes.
Cons
Optimize does seem to take awhile.
Summary
It seems to work fairly well.
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